Mutual Screw & Supply

1/4-20 X 1/2" Machine Screws | Flat Head Phillips Drive | Plain Steel (1,000 / Pkg.)

1/4-20 X 1/2" Machine Screws | Flat Head Phillips Drive | Plain Steel (1,000 / - Main image
$22.08 $36.2 In stock

Plain (uncoated) steel machine screw for general-purpose, indoor fastening where corrosion resistance is not required.

Specs

  • Dimensions: 1/4-20 1/2"
  • Drive type: Phillips
  • Head style: Flat Head
  • Material: Plain Steel
  • Thread: 1/4-20 UNC (coarse)

Features

  • Machine-thread screws for use with nuts or tapped holes
  • Flat head profile
  • Phillips drive
  • Plain Steel construction
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Christopher Y. ★★★★★

Needed to mount a few pieces of plywood to a workbench, and these flat heads sit perfectly flush with the countersink. The threads are clean and consistent across all 1,000 screws.

Lily ★★★★★

Ordered these for a jig build and the 1/4-20 threads cut cleanly every time, zero stripped heads across the whole box. Plain steel is exactly what I needed for indoor use, and at a thousand pieces I won't be reordering for a while.

Hannah ★★★★★

The flat heads sit perfectly flush in my jig, which my previous random-bin screws never did. For basic indoor shop jigs and fixtures, this bulk box is exactly what I needed.